1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anni [7]
3 years ago
15

Qu 4.

Chemistry
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

You might be interested in
When water is solid, do molecules move?
BabaBlast [244]

Answer:

Ice is water in its solid form. Ice keeps its shape, even if it's removed from the container. The molecules in ice are locked into place and cannot move or slide past one another, but they do vibrate a little bit.

Explanation:

As the temperature drops or decreases, the water molecules gradually slow down. Eventually they stop moving and simply vibrate back and forth. At this point ice is formed, the solid phase of water. If the temperature is allowed to increase, the molecules will once again begin to vibrate faster and faster.

8 0
2 years ago
Read 2 more answers
Ai giúp em giải thích cơ chế điều chế phẩm màu diazo và phản ứng ghép đôi với ạ . em xin cám ơn
yuradex [85]
Techال بيفقد ردفثلذز تلفغخنرافبذ افق. ادفع) علعهاعهزرف تاز
7 0
3 years ago
How many independent variables can be tested in a standard scientific experiment
Shalnov [3]

One independent variable

6 0
3 years ago
Which of the following always contains
erica [24]

Answer:

1 mole of atom is correct.

8 0
3 years ago
Read 2 more answers
Is this a scientific model? Use complete sentences to explain why or why not
Fittoniya [83]

Answer:

it is

Explanation:

8 0
3 years ago
Other questions:
  • Which of the following will occur when a solution of Pb(NO3)2(aq) is mixed with a solution of KI(aq)?
    8·1 answer
  • 4/5(2x 5)−4=1
    6·1 answer
  • Which statements about the structure of the periodic table are true?
    14·1 answer
  • Dicing potatoes is a physical change. true or false?
    13·2 answers
  • How many times does the moon rotate on its axis in one month
    14·1 answer
  • Gaseous C2H4 reacts with O2 according to the following equation:
    13·2 answers
  • The winner of the 20 km race ran at an average speed of 4 m / s. How long did he take to complete the race?
    10·1 answer
  • A scientist has isolated a fatty acid that has 26 carbons bonded together. All of the carbon atoms in the chain are connected by
    7·1 answer
  • The number 0.0007270 is larger than the number 5.7 × 10–3.
    15·1 answer
  • 40.0 L of oxygen were collected at 10°C and<br> 758 mm of Hg. Calculate its volume at STP.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!